Electric flash-light.



J. TISCIONE.

ELECTRIC FLASH LIGHT. APPLICATION FILED JULY 1, 1915.

1,226,926. Patented May 22, 1917.

Witnesses the base of thelamp engages. v projects below the lower end of the socket,

JOSEPH TISCIONE, OF NEW YORK, N. Y.

ELECTRIC FLASH-LIGHT. 3

Application filed July 1, 1915. Serial No. 37,519.

To all whom it may concern:

Be it known that I, Josnrn Trs'cronn, a subject of the King of Italy, residing in the borough of Manhattan, city, county, and

State of New York, have invented a certain I new and useful Improvement in Electric};

Flash-Lights, of which the following is a specification.

My invention relates to pocket flash lights, and more particularly to that type of such devices which are of small diameter as compared with-the length, and are usually made to simulate a fountain pen, and has for its object to simplify such a device and to obviate the danger of short circuiting the battery.

These and further objects will more fully appear from the following specificationand accompanying drawings considered together or separately.

In the drawings, I

Figure 1 is a longitudinal sectional view of a pocket lamp embodying my invention;

Fig. 2 is a similar view taken at right angles to the plane of Fig. 1;

Fig. 3 is a side elevation of the device; and

Fig. 4 is a cross section on the line 4-4- of Figs. 1, 2 and 3.

In all of the views, like parts in the several figures are designated by Similar reference characters.

In the drawings, 1' represents a barrel which carries in one end a reflector 2 in which is seated a lamp bulb 3. The reflector is secured in place in any approved manner, such as by means of a bayonet joint. The reflector has a threaded socket with which so that the central contact of the lamp may be engaged by a contact 4 on a dry cell 5, carried in the barrel. The other contact of the lamp is grounded in the barrel.

The other end of the barrel is provided with a cap 6 secured thereto by means of a bayonet joint. The cell projects from the barrel into the cap.- The cap is provided with the usual pocket clasp 7, and with a perforation 8 in one side. v

4 The parts above described are of the ordinary, well-known on such devices, per se.

Secured within the barrel 1 is a leaf spring 9 which bears against the cell 5, and holds the cell in fricti nal e g ge ent with t e Specification of Letters Patent.

The base type, and I make no claim I.

Patented May 22, 1917.

wall of the barrel and the button 4 in contact with the lamp base.

Extending through the perforation 8 is a switch 10 which comprises a long shank which extends practically the entire length of the cap and on the inside thereof. The inner end 11 of the shank is bent across the cap and beneath the bottom of the cell. The bent over portion of the shank is provided with a projecting portion 12 which is adapted to contact with the metallic base of the cell when the switch is raised. The upper end of the shank isbent at an angle, and projects through the perforation'8, and carries a button 13 for engagement by the finger. of the operator.

It will be understood that the cylindrical sides of the cell are inclosed in an insulat ing shield to prevent short circuiting of the battery.

The device as carried in the pocket of the user is in position with the bulb downward,

' position.

Instead of a single cell, as shown, I may, to increase the voltage, use a plurality of short cylindrical cells arranged in series, as is common.

In operation with the parts in the positions shown in the drawings, the circuit will be broken at the base of the cell. When it is desired to light the lamp the button 13 is pushed upward, the projection 12 will engage the metal bottom of the cell, the upper end of the shank of the switch will be forced into intimate engagement with the cap, the

circuit will be closed and the lamp lighted.

Should the device he carried in the inverted position, and be jarred so that thefspring 9 will not hold the terminal 4 in engagement with the lamp base, the bottom of the cell will rest on the projection lZ. will not be short circuited, as the contact. with the lamp will be broken. When the button 13 is pushed upward, the cell will be raised to; make contact with the lamp base, andwthe circuit willbe closed.

In accordance .with the provisions of the patent statute, I have described the principle of my invention together with the apparatus, which I now consider to represent the best embodiment thereof, but I The battery desire to 9 have it understood that the apparatus shown is merely illustrative, and that the invention can be carried out in other ways without departing from thespirit of my invention.

Having now described my invention, what I claim as new and desire to secure by Let- {ers Patent of the United States, is as folows:

The combination with a cylindrical casmg, a lamp carried by and having one terminal grounded in the casing,

a cap on the casing, of a battery carried in, but insulated from the casing and cap, means for mechanically and electrically engaging the battery 15 with the lamp and mechanically with the casing, a bodily movable switch within the cap, said cap having an. opening through which the end of the switch projects, a foot on the switch engaging both sides of the easing, a projection on the foot, and means on the switch whereby the projection may be brought into electrical engagement with the end of the battery opposite the lamp.

This specification signed and witnessed this 28 day of June, 1915.

' JOSEPH TISOIONE.

Witnesses:

JOHN L. Lo'rscH, Mon H. LEWIS. 

